I want to buy plastic box protector sleeves like Nike has on some of their models but I want my custom design printed on them. I need at least 10,000 and quickly. Google doesn’t show any manufacturers that can do it for this use case and scale. I reached out to a few friends but they seem to not have experience in this domain either. Tempted Chinese manufacturers, but I don’t know where to find them. Can anyone point me in the right direction?